"Efficiency" is a word in ENGLISH

Sufficient'; proportionate; equally efficient

An artificial alkaloid, believed to be efficient in abating fever.

To cover or furnish with a plate, or with whatever will add strength, force, security, or efficiency; as, to arm …

A branch of the military service; as, the cavalry arm was made efficient.

Furnished with whatever serves to add strength, force, or efficiency.

The beginner, former, or first mover of anything; hence, the efficient cause of a thing; a creator; an originator.

Joint efficiency; cooperation.

Power of action; agency; efficiency.

To corrupt or undermine in morals; to destroy or lessen the effect of moral principles on; to render corrupt or …

To have efficiency as an epispastic; to act as a sinapism; -- said of a blister, poultice, etc.

The efficiency of an engine, especially a steam pumping engine, as measured by work done by a certain quantity of …

Power to produce results; efficiency; force; importance; account; as, to speak with effect.

Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative; as, an …

Producing, or having adequate power or force to produce, an intended effect; adequate; efficient; operative; decisive.

No longer capable of producing young, as an animal, or fruit, as the earth; hence, worn out with age; exhausted …

Alt. of Efficiency

Causing effects; producing results; that makes the effect to be what it is; actively operative; not inactive, slack, or incapable; …

An efficient cause; a prime mover.

The working cause; that cause which produces effects or results; an intervening cause, which produces results which would not have …

With effect; effectively.